| Parameter Item | Value | Unit | Remarks (Consistent with SKF/NSK 7900) |
|---|---|---|---|
| Inner Diameter (d) | 10 | mm | Precision grinding, ISO 3290-1 tolerance |
| Outer Diameter (D) | 22 | mm | - |
| Width (B) | 6 | mm | - |
| Precision Class | P2/P4/P5 | - | Optional, high-precision rotation |
| Ball Material | Si3N4 Ceramic | - | High strength, high temperature resistance |
| Ring Material | GCr15 / 440C Stainless Steel | - | 440C for corrosion resistance |
| Limiting Speed (Oil) | 38000 | r/min | Higher than steel ball bearings |
| Limiting Speed (Grease) | 28000 | r/min | - |
| Radial Dynamic Load (C) | 3.25 | kN | - |
| Axial Dynamic Load (Ca) | 1.62 | kN | - |
| Radial Static Load (C0r) | 1.62 | kN | - |
| Axial Static Load (C0a) | 1.05 | kN | - |
| Contact Angle | 15° | - | Optimized for axial load |
| Operating Temp Range | -40 ~ +200 | ℃ | Customizable for high temp |
Perfect interchangeability with SKF/NSK 7900, no equipment modification needed
Si3N4 ceramic balls reduce friction and runout error, P2/P4/P5 precision grade
Excellent high-speed performance, stable operation at 38000 r/min (oil lubrication)
Optional 440C stainless steel ring, strong corrosion resistance in harsh environments
Low noise (<35dB) and energy saving, long service life (3-5x of steel ball bearings)
High-end CNC machine tool spindles/feed shafts
Precision metrology instruments, optical equipment
Aerospace navigation equipment, small aircraft engines
Medical high-speed centrifuges, precision surgical instruments
Electronic high-speed motors, precision gear sets
Use special tools for installation, avoid knocking bearing rings
Choose oil lubrication for high-speed, high-temp grease for high-temperature scenarios
Regularly check lubrication and cleanliness, clean and maintain in time
Store in sealed dry environment, avoid humidity and corrosion
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